Companies / Markel Group Inc / Activity

Activity — Markel Group Inc

40 moves.

Top impactInsider · CEO movesInsider · biggest buysInsider · biggest sellsInstitution · biggest movesInstitution · new positions
InsidersInstitutions
DateActorActionSecurityValueShares ΔPosition afterImpact
May 20, 2026Housel Morgan E.
Director
GrantCommon Stock$0+89
+10.18%
963
<0.01% of shares
low
May 20, 2026Harris Greta J
Director
GrantCommon Stock$0+89
+14.08%
721
<0.01% of shares
low
May 20, 2026Besca Mark
Director
GrantCommon Stock$0+89
+8.46%
1,141
<0.01% of shares
low
May 20, 2026Cunningham Lawrence A
Director
GrantCommon Stock$0+89
+9.68%
1,009
<0.01% of shares
low
May 20, 2026Leopold Diane
Director
GrantCommon Stock$0+89
+4.06%
2,279
0.02% of shares
low
May 20, 2026Puckett A. Lynne
Director
GrantCommon Stock$0+89
+25.25%
441
<0.01% of shares
low
May 20, 2026Morrison Harold Lawrence Jr.
Director
GrantCommon Stock$0+89
+8.86%
1,094
<0.01% of shares
low
May 20, 2026Oreilly Michael
Director
GrantCommon Stock$0+89
+2.37%
3,845
0.03% of shares
low
May 20, 2026Michael Jonathan E
Director
GrantCommon Stock$0+89
+50.05%
267
<0.01% of shares
low
Feb 24, 2026Grinnan Richard Randolph
Executive
GrantCommon Stock$0+801
+23.12%
4,263
0.03% of shares
low
Feb 24, 2026Gayner Thomas Sinnickson
CEO
GrantCommon Stock$0+4K
+8.58%
56,741
0.46% of shares
low
Feb 24, 2026Wilson Simon
CEO
GrantCommon Stock$0+868
+53.30%
2,497
0.02% of shares
low
Feb 24, 2026Grandis Meade P.
Executive
GrantCommon Stock$0+70
+31.08%
294
<0.01% of shares
low
Feb 24, 2026Crowley Andrew G.
Executive
GrantCommon Stock$0+830
+43.37%
2,744
0.02% of shares
low
Feb 24, 2026Costanzo Brian J.
Executive
GrantCommon Stock$0+655
+68.44%
1,611
0.01% of shares
low
Mar 31, 2026Costanzo Brian J.
Executive
OtherCommon Stock$3.0K+2
+0.11%
1,613
0.01% of shares
low
Dec 31, 2025Costanzo Brian J.
Executive
OtherCommon Stock$3.5K+2
+0.23%
957
<0.01% of shares
low
Mar 31, 2026Crowley Andrew G.
Executive
OtherCommon Stock$15.0K+9
+0.34%
2,753
0.02% of shares
low
May 15, 2026Costanzo Brian J.
Executive
OtherCommon Stock$24.1K-13
-0.81%
1,600
0.01% of shares
low
May 22, 2026Harris Greta J
Director
SellCommon Stock$25.9K-14
-2.04%
672
<0.01% of shares
low
May 22, 2026Harris Greta J
Director
SellCommon Stock$49.9K-27
-4.02%
645
<0.01% of shares
low
May 15, 2026Costanzo Brian J.
Executive
OtherCommon Stock$50.0K+30
+1.88%
1,630
0.01% of shares
low
Jun 15, 2026Cunningham Lawrence A
Director
OtherCommon Stock$55.0K+33
+3.27%
1,042
<0.01% of shares
low
Jun 15, 2026Morrison Harold Lawrence Jr.
Director
OtherCommon Stock$55.0K+33
+3.01%
1,127
<0.01% of shares
low
May 22, 2026Harris Greta J
Director
SellCommon Stock$64.6K-35
-4.85%
686
<0.01% of shares
low
May 7, 2026Leopold Diane
Director
BuyCommon Stock$89.5K+50
+10.00%
550
<0.01% of shares
medium
Feb 17, 2026Wilson Simon
CEO
OtherCommon Stock$98.0K-47
-2.80%
1,629
0.01% of shares
low
May 15, 2026Crowley Andrew G.
Executive
OtherCommon Stock$100.0K+60
+2.25%
2,738
0.02% of shares
low
May 1, 2026Puckett A. Lynne
Director
BuyCommon Stock$102.3K+57
+4.05%
1,463
0.01% of shares
medium
Jun 15, 2026Housel Morgan E.
Director
OtherCommon Stock$110.0K+66
+6.85%
1,029
<0.01% of shares
low
Jun 15, 2026Leopold Diane
Director
OtherCommon Stock$110.0K+66
+2.89%
2,345
0.02% of shares
low
Jun 15, 2026Puckett A. Lynne
Director
OtherCommon Stock$110.0K+66
+14.93%
507
<0.01% of shares
low
Jun 15, 2026Michael Jonathan E
Director
OtherCommon Stock$110.0K+66
+24.71%
333
<0.01% of shares
low
Jun 15, 2026Besca Mark
Director
OtherCommon Stock$135.0K+81
+7.09%
1,222
<0.01% of shares
low
May 15, 2026Crowley Andrew G.
Executive
OtherCommon Stock$138.1K-75
-2.72%
2,678
0.02% of shares
low
Jun 15, 2026Oreilly Michael
Director
OtherCommon Stock$150.0K+90
+2.34%
3,935
0.03% of shares
low
May 6, 2026Leopold Diane
Director
BuyCommon Stock$179.3K+100
+4.78%
2,190
0.02% of shares
medium
Feb 26, 2026Wilson Simon
CEO
SellCommon Stock$207.9K-100
-4.01%
2,397
0.02% of shares
medium
May 15, 2026Grinnan Richard Randolph
Executive
OtherCommon Stock$214.6K-116
-2.73%
4,147
0.03% of shares
low
May 15, 2026Gayner Thomas Sinnickson
CEO
OtherCommon Stock$888.2K-482
-0.85%
56,260
0.45% of shares
low
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